Thanks all - I found them! I was initially only searching for June, July and August since I knew they offered some in those months past. I was hoping they'd be offered at those times again so we could go when the kids aren't in school. I hope they bring them back to early and mid summer times in the future. Now that my daughter is in high school, taking her out of school for that long is way too stressful for her. We used to do it but it's just not a reasonable option for us anymore.